Digital sources like Harriet Jacobs's Incidents in the Life of a Slave Girl can involve students in a deep investigation of the long-term history and personal impacts of slavery in the United States.

A close examination of Britain's decision to leave the European Union can advance student understanding of key economic concepts like trade, free trade, costs and benefits, as well as immigration.

Are democratic institutions a necessary precursor to economic development? Students can debate this issue and draw informed conclusions after studying the case of China's historic rise.

The KidCitizen app engages young learners with primary sources as they explore issues like child labor, the role of Congress, and children's civic participation.